J/AJ/127/2085 Disk brightness profiles in galaxies (Anderson+, 2004)
Inner-truncated disks in galaxies.
Anderson K.S.J., Baggett S.M., Baggett W.E.
<Astron. J., 127, 2085-2093 (2004)>
=2004AJ....127.2085A 2004AJ....127.2085A
ADC_Keywords: Galaxies, photometry ; Morphology
Keywords: galaxies: photometry - galaxies: spiral
Abstract:
We present an analysis of the disk brightness profiles of 218 spiral
and lenticular galaxies. At least 28% of disk galaxies exhibit inner
truncations in these profiles. There are no significant trends of
truncation incidence with Hubble type, but the incidence among barred
systems is 49%, more than 4 times that for non-barred galaxies.
However, not all barred systems have inner truncations, and not all
inner-truncated systems are currently barred. Truncations represent a
real dearth of disk stars in the inner regions and are not an artifact
of our selection or fitting procedures nor the result of obscuration
by dust.
Description:
Our database consists of radial surface brightness profiles, measured
in the V band, for a large sample of spiral and lenticular galaxies,
and taken from the Photometric Atlas of Northern Bright Galaxies
(PANBG; Kodaira et al., 1990, Cat. VII/147).
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table2.dat 115 218 Galaxy fit parameters
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See also:
VII/147 : Photometric Catalog of Northern Bright Galaxies (Kodaira+ 1992)
J/AJ/116/1626 : Spiral & lenticular galaxy brightness profiles (Baggett+, 1998)
Byte-by-byte Description of file: table2.dat
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Bytes Format Units Label Explanations
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1- 8 A8 --- Name Galaxy name
10- 19 A10 --- Type Revised Hubble type from the RC3, VII/155
21- 24 F4.1 --- TType T-type from the RC3
26- 29 F4.2 [---] R25 Axial ratio (1)
31- 57 A27 arcsec Ranges Fitting range(s)
59- 63 F5.2 mag/arcsec2 SuBrb ? V-band bulge effective surface
brightness (2)
65- 71 F7.2 arcsec Rad ? Bulge effective radius corrected for seeing
73- 77 F5.2 mag/arcsec2 SuBrd ? V-band disk central surface brightness (3)
79- 83 F5.1 arcsec Radd ? Angular disk scale length
85- 89 F5.1 arcsec TRadd ? Angular disk truncation radius
91- 94 F4.2 mag/arcsec2 RMS V band RMS deviation of the fit
96- 99 F4.1 Mpc Dist ? Distance from Tully (1988, Cat. VII/145)
101-104 F4.1 kpc PRadd ? Physical disk scale length
106-109 F4.1 kpc TPRadd ? Physical disk truncation radius
111-114 A4 --- Note Additional notes (4)
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Note (1): Where R25=log(a/b). From the RC3, VII/155.
Note (2): Corrected for seeing and Galactic extinction.
Note (3): Corrected for Galactic extinction and inclination.
Note (4): Additional notes as follows:
A = Prominent arm/bar/ring/dust lane removed from fit
B = Much structure in profile
C = Truncated disk fit to a bright arm or lens
D = Bar near major axis
E = Bar near minor axis
F = Bar between axes
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History:
From electronic version of the journal
References:
Baggett et al., Paper I 1998AJ....116.1626B 1998AJ....116.1626B, Cat. J/AJ/116/1626
(End) Greg Schwarz [AAS], Patricia Vannier [CDS] 06-Jul-2004